Ruger P89-P944 Decocker, Firearm Manuals
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INSTRUCTION
MANUAL
FOR
BLUED &
STAINLESS
STEEL
CALIBERS
9mm,
.40 Auto & .45ACP
RUGER
®
P-SERIES
P89DC, P90DC, P91DC, P93DC, P94DC, P944DC
DECOCKER MODEL PISTOLS
*
*
DO NOT USE THIS MANUAL FOR PISTOLS EQUIPPED WITH MANUAL
SAFETIES OR “DOUBLE ACTION ONLY” PISTOLS
!
READ THE INSTRUCTIONS AND
WARNINGS IN THIS MANUAL CAREFULLY
BEFORE USING THIS FIREARM
For Product Service on This Model Please Call:
(520) 778-6555 (See p. 20)
STURM, RUGER & Company, Inc.
Southport, Connecticut 06490 U.S.A.
THIS INSTRUCTION MANUAL SHOULD ALWAYS ACCOMPANY THIS FIREARM AND BE
TRANSFERRED WITH IT UPON CHANGE OF OWNERSHIP, OR WHEN THE FIREARM IS LOANED
OR PRESENTED TO ANOTHER PERSON
V & KV 2/9
R2
FIREARMS SAFETY - YOUR RESPONSIBILITY
SAFETY MUST BE THE FIRST AND CONSTANT
CONSIDERATION OF EVERY PERSON WHO
HANDLES FIREARMS AND AMMUNITION.
This Instruction Manual is designed to assist you in learning how to use and care
for your
RUGER
®
P89, P90, P91, P93, P94 and P944
Decocker
Model Pistols properly. Please contact us if you have any questions.
Only when you are certain you fully understand the Manual and can properly
carry out its instructions should you practice loading, unloading, etc. with live
ammunition. If you have any doubts about your ability to handle or use a partic-
ular type of gun safely, you should seek supervised instruction. Such personal-
ized instruction is often available from gun dealers, gun clubs or police depart-
ments. If none of these sources can help you, write to the National Rifle
Association, 11250 Waples Mill, Fairfax, VA 22030-7400. They will assist you.
The person possessing a gun has a full-time job. You cannot guess; you cannot
forget. You must know how to use your firearm safely.
Do not use any firearm
without having a complete understanding of its particular characteristics and
safe use.
Remember: There is no such thing as a foolproof gun.
TABLE OF CONTENTS
General Information and Mechanical Characteristics . . . . . . . . . . . . . . .3
Special Feature - Decocking Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Ammunition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
To Load and Fire (with magazine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
To Uncock (Decock) The Pistol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
To Load and Fire (without magazine) . . . . . . . . . . . . . . . . . . . . . . . . . .11
To Unload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
To Reload The Pistol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
To Extract and Eject a Chambered Cartridge . . . . . . . . . . . . . . . . . . . .13
To Clear a Malfunction (“Jam”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
To Minimize Malfunctions (“Jams”) . . . . . . . . . . . . . . . . . . . . . . . . . . .15
To Disassemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
To Reassemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Magazine Inspection and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Sight Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Service and Parts Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Parts Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27, 28, 29 & 30
The Basic Rules of Safe Firearms Handling . . . . . . . . . . . . . . . . . . . . .31
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Ruger® is a registered U.S. trademark.
P89, P90, P91, P93, P94 and P944 are Sturm, Ruger trademarks.
2
!
WARNINGS OF GREAT IMPORTANCE ARE
FOUND ON THE FOLLOWING PAGES:
Alterations
3
Slide Retraction
12
Decocking Lever
6
Malfunctions
14
Lead Exposure
7
Disassembly
15
Ammunition
8
Lubrication
19
Firing
9
Storage
19
Handling
10
Parts Purchasers
21
Unloading
11
OTHER CAUTIONS AND WARNINGS APPEAR
THROUGHOUT THE MANUAL.
FIREARMS ARE DANGEROUS WEAPONS -
READ THE INSTRUCTIONS AND WARNINGS
IN THIS MANUAL THOROUGHLY AND
CAREFULLY BEFORE USING.
!
WARNING - ALTERATIONS
This product was designed to function
properly in its original condition. Alter-
tions can make it unsafe. Do not alter any
part or add or substitute parts or acces-
ories not made by Sturm, Ruger & Co.
Inc.
DO NOT ALTER ANY GUN
GENERAL INFORMATION
AND MECHANICAL CHARACTERISTICS
The
RUGER
®
P89DC, P90DC, & P91DC*
pistols are centerfire, double
action, “decock only” magazine-fed, autoloading, recoil-operated pistols. The
P89DC
is chambered for the caliber 9mm Parabellum (9mm x19) cartridge,
the
P90DC
is chambered for the .45 ACP cartridge, and the
P91DC
is cham-
bered for the .40 S & W cartridge. The
P93DC
has a shorter, “streamlined”
slide and is chambered for the 9mm Parabellum (9mm x 19) cartridge. The
P94DC
has a full length “streamlined” slide configuration and is chambered
for the 9mm Parabellum (9mm x 19) cartridge, while the
P944DC
is cham-
bered for the .40 S&W cartridge. They comply with the requirements of the
National Institute of Justice Standard - 0112.00. They include the following fea-
tures with which users should be thoroughly familiar:
*
The
P91DC
is no longer in production - this manual is for reference only.
3
NOMENCLATURE
(P91DC Shown)
Sights
have high-visibility
white dots both front and
rear. Rear sights can be
adjusted for windage.
Slide’s
open top design minimizes possi-
bility of jamming, enables shooter to
clear any malfunction easily by hand.
Cartridges can be loaded singly if desired.
Grooved, exposed
hammer
spur enables the shooter to
cock the hammer easily for
accurate single-action fir-
ing if desired.
To decock the pistol, depress
the decocking lever until the
hammer drops. This action
moves the firing pin forward
into the slide. This temporari-
ly places the firing pin out of
reach of the hammer stroke
and locks the firing pin a neu-
tral position, preventing it
from moving toward the car-
tridge.
Frame
is precision investment cast
in lightweight aluminum alloy,
hard-coated for toughness.
RELEASING EITHER
DECOCK LEVER WILL
ALLOW THE LEVERS TO
SPRING UPWARD TO
THEIR ORIGINAL
POSITION, PLACING THE
PISTOL IN A FIRING
CONDITION.
Double-action mechanism and strongly curved
trigger
provide that cocking and firing can be
accomplished with a single pull of the trigger.
Oversize
trigger guard
permits shooting with gloved
hand. Recurved trigger guard bow accommodates non-
shooting hand in two-hand hold.
The ambidextrous
magazine latch
permits positive
retention and quick removal of magazine.
Slide stop
holds the slide open and is activated
automatically when last shot is fired (if magazine is in
pistol), or can be manually operated.
Lanyard loop
provides security for carrying in the
field or police use.
Action:
The action of the Ruger decocker model pistols is of the U.S. M1911 type
that utilizes a tilting barrel design in which the barrel and slide are locked
together at the moment of firing. After firing, the barrel and slide recoil to the
rear a short distance while still locked together. After this initial movement, the
barrel tilts downward from its locked position, permitting full recoil of the slide
and the extraction and ejection of the spent cartridge case.
The user of this or any autoloading pistol must always remember that when
fired, it automatically reloads and recocks itself, so that simply pulling the trig-
ger will fire the pistol again. Therefore, an autoloading pistol user must be par-
ticularly conscious to always keep the pistol pointed in a safe direction.
4
Slide Stop:
When the last shot has been fired and the magazine is empty, the
slide stop automatically holds the slide open. When there is an empty magazine
in the pistol and the slide is retracted manually, the slide stop will automatically
hold the slide open. If a loaded magazine is inserted in the pistol when the slide
is closed and the slide is then retracted fully, the slide stop will not automatically
hold open the slide. The user can actuate the slide stop mechanism to hold the
slide open at any time by retracting the slide and pushing up the slide stop.
The slide stop can be released by drawing back slightly on the slide and depress-
ing the slide stop thumbpiece. When the slide is released, it will move forward
under pressure from the recoil spring.
The slide stop is spring-loaded to move downward. Therefore, when there is a
loaded magazine in place and the pistol is jarred, the slide can fly forward and
chamber a cartridge. For this reason and as an essential safety practice,
the user
should always be careful to keep fingers away from the trigger and always keep
the pistol pointed in a safe direction.
Magazines:
The Ruger 9mm, .40Auto, and .45 ACP magazines are
not
inter-
changeable with Ruger pistol magazines of
any
other caliber even though they
may appear similar and may hold other cartridges. Use of incorrect magazines in
any pistol will result in malfunctions. Ruger 9mm magazines are either
unmarked as to caliber or are marked “9mm cal. only”. All other Ruger center-
fire pistol magazines, which are similar in appearance, are marked as to caliber
(“.40 Auto Cal.,” etc.).
DAMAGED, NON-STANDARD, OR IMPROPERLY
ASSEMBLED MAGAZINES SHOULD NOT BE USED.
THEY CAN CAUSE THE PISTOL TO MALFUNCTION.
SPECIAL FEATURE - DECOCKING LEVER
The model you have selected is equipped with a special manual decocking lever
that allows you to decock (uncock) a cocked pistol without manipulating the
trigger. Conventional thumb decocking procedures are therefore not necessary
and should not be employed with this pistol.
To decock the pistol,
point the pistol in a safe direction.
Depress the cocking
lever until the hammer drops. The decocking lever blocks the hammer from the
firing pin while simultaneously blocking the firing pin from movement towards
the cartridge (see Figure 1, p. 6). To return the pistol to firing condition, simply
release the decocking lever (see Figure 2, p. 6). It will spring upward to its origi-
nal position. The pistol is then ready to fire by a “double-action” pull of the trig-
ger. The hammer can also be manually cocked immediately before shooting a
“single-action” firing. The trigger pull is both shorter and relatively lighter in
the “single-action” mode, which is preferred for more accurate shooting.
5
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